This study is based on an analysis of 76 cases of bronchiectasis treated by pulmonary resection at the Department of Thoracic and Cardiovascular Surgery, School of Medicine, Keimyung University from September, 1978, to February, 1989. There were 37 males and 39 females, and their age raged from 7 to 75 years, with 66 cases (87.7%) between 10 and 39 years. The past history included mealses(36/8%), frequent URI (26.3%), pulmonary tuberculosis(23.7%), and pneumonia or bronchitis (21.1%). The main clinical symptoms were cough(90.8%), purulent sputum(88.2%), hemoptysis(64.5%). The preperative diagnosis was made by bronchography. Thirty-five cylindrical, 16 cystic, 1 varicose and 20 mixed types of bronchiectasis were noted. The majority of the cases had disease in the dependent portion of the lung. Various types of pulmonary resection were performed. Early complications developed in 10 cases(13.2%), but no operative death. THe follow-up ranged from 10 months to 137 months. In 57 cases having resection of all bronchiectatic lesion, 48(84.2%) had excellent or improved conditions, but 5(8.8%), unchanged. In 19 cases whom not all demonstrable disease removed, 14(73.7%) had excellent or improved conditions, but 3(15.8%0, unchanged.